4
Feed Horn
Hazard Area
Warning
Area
Figure 2-1 Defined Radiation Areas
Hazard Area (Between the feed and reflector): This is the highest power density region
because the area of power radiation (the feed flange) is smallest.
Warning Area (Near field): This is the area bounded by a cylinder within the same
diameter of the reflector, and which extends from the reflector toward the satellite for, in
the case of auto acquire systems, less than 75 meters (the exact distance depends on
frequency and the diameter of the reflector).
Far field: This is the area situated at some distance from the antenna, where the
radiation density falls off with the square of distance.
Содержание Ku-BAND RX
Страница 1: ...INSTALLATION AND OPERATION MANUAL FOR VSAT VS61 Ku BAND TX RX ANTENNAS...
Страница 15: ...7 Figure 3 1 Best Location Figure 3 2 Antenna Blockages...
Страница 46: ...38 Figure 4 1 Step 1 of Reference Searching Definition...
Страница 56: ...48 D i s h Figure 5 7 Determining the Heading Discrepancy Ship s BOW Figure 5 8 Direction of the Heading Offset...
Страница 65: ...57 Figure 6 3 Co pol Kits Optional...
Страница 76: ...68 when the key is pressed If you want to stop the skew pull out the key Figure 7 11 Skew in Jog Mode...
Страница 99: ...91 SEN VEL Angular Velocity of Elevation Cross Azimuth Axis Figure 7 37 Diagnostic for Sensor and Driver...
Страница 120: ...d Appendix C Layout of Radome and Antenna Mounting Holes Figure C 1 Plastic Radome...
Страница 121: ...e Figure C 2 FRP Radome Option...
Страница 122: ...f...
Страница 123: ...g Maritime Satellite Antenna...